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Rectangular silver steel padlock with standard shackle and two bumpers

Master Lock

Master Lock 3KA Keyed Alike Padlock, Standard Shackle, Rectangular Steel Body

SKU CH-W9MQ-ZWHKN

Keyed-alike padlock with a laminated steel body and standard shackle opens with key number 3476

  • TypeMechanical Push Button
  • Keyed-alike convenience opens multiple locks with one key
  • Four-pin cylinder resists basic picking attempts
  • Laminated steel body adds strength against physical attack
  • Standard shackle dimensions fit common hasps and chains
  • Silver finish identifies the lock quickly in a set

Rectangular Steel Padlock

The Master Lock 3KA is a laminated steel padlock with a rectangular body and a 9/32 in steel shackle. It uses a four-pin cylinder that opens with key number 3476 and is supplied keyed alike for single-key convenience.

Keyed-alike simplicity

Suits buyers who want one key to open multiple locks on sheds, gates or storage units. Not for buyers who need weather-resistant construction, high-security ratings, rekeyable cylinders or interchangeable cores.

Four-pin cylinder headroom

The four-pin mechanism provides basic deterrence for low-risk indoor or sheltered outdoor use. It runs out where pick resistance, drill resistance or exposed-environment durability are required.

Highlights

  • Keyed-alike convenience opens multiple locks with one key
  • Four-pin cylinder resists basic picking attempts
  • Laminated steel body adds strength against physical attack
  • Standard shackle dimensions fit common hasps and chains
  • Silver finish identifies the lock quickly in a set

Specifications

BrandMASTER LOCK
TypeMechanical Push Button

Questions about this item

Does the 9/32 in shackle diameter fit the hasp on my storage unit?

The shackle is 9/32 in thick, 3/4 in tall and 5/8 in wide; measure your hasp hole and clearance to confirm fit.

Will the 4-pin cylinder accept the keys I already have for other Master Lock padlocks?

These use the Master K1 keyway and are keyed alike to key number 3476; only locks with the same keyway and code will share keys.

How do I verify the laminated steel body is secure after I snap it on?

The body is 1 1/4 in high, 1 9/16 in wide and 3/4 in thick with two bumpers; check that the shackle locks fully and the key turns smoothly.

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